Portuguese Abstract: Um dos temas mais discutidos na área de finanças é a forma como os mercados se estruturam informacionalmente, precificando ativos financeiros. Uma das teorias centrais de discussão é a Hipótese de Eficiência dos Mercados (HEM) de Eugene Fama (1970), derivada da teoria...

Portuguese Abstract: O crescimento vigoroso da indústria de Private Equity no mundo gerou questões fundamentais, como por exemplo explicar se as empresas abertas previamente investidas por estes gestores geram retornos reais aos seus acionistas, após o evento do IPO. Pouco se analisou,...

The purpose of this work is to gather some evidence about the relationship between crude prices and speculation in oil futures and options markets focusing on WTI markets. In order to shed some light on this link, a brief characterization of what a speculative bubble is and how it works is...

The Brazilian capital market has been in the last 10 years a attractive space for negotiations and opening of company’s capital. The early studies of market anomalies that are looking for evidence on reasons of understatement and overstatement at the time of the IPO in Brazil date back to...

English Abstract: The long-horizon event study methodology is used to document the severe impact of the US subprime mortgage crisis on the Colombian economy. The estimated parameter of a constant mean return model is used to derive the “abnormal return” on the market portfolios of Colombia...

Portuguese Abstract: Este estudo avalia o comportamento de carteiras formadas por ativos do mercado acionário brasileiro ordenados em função de sua volatilidade para investigar a anomalia de baixa volatilidade.Entre janeiro de 2003 e junho 2017, o portfólio de baixa volatilidade apresentou...

Traditionally the differences between the organizations of the public property sector and those of the private one are pointed out. In addition to the classic failures on both of these productive sectors, based on the organizational “500 Maiores e Melhores” operating in Portugal that are...

The main purpose of this work is to provide a panoramic and almost exhaustive view on the "rational expectations hypothesis" literature published until 1992. Several issues less well known are emphasized. Many results and comments are integrated and presented in a somewhat innovative fashion.

The technological and institutional environment influences the way of doing research and the relationships between its participants. Intellectual property is a strategic issue to build the institutional framework of the new technological regime and therefore the dynamics of innovation in...